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公开(公告)号：US11891921B2
公开(公告)日：2024-02-06
申请号：US17625679
申请日：2020-07-07
申请人： Cummins Ltd.
CPC分类号： F01D9/026 , F01D9/045 , F01D9/048 , F01D17/167 , F02B37/025 , F02B37/24 , F05D2220/40
摘要： A turbine assembly comprising a housing comprising first and second volutes which define a respective first and second flow passage. A circumferential outlet portion of each volute is defined by first and second tongues. The housing further comprises a first aperture in which a vane assembly is received. The vane assembly comprises a plurality of vanes circumferentially distributed about a turbine wheel-receiving bore, each vane comprising a leading edge and a trailing edge. Each vane has a fixed orientation. The vanes comprise a first vane and a second vane. The first vane having its leading edge disposed in closest proximity to a tip of the first tongue. The second vane having its leading edge disposed in closest proximity to a tip of the second tongue. The leading edge of each vane at least partly overlaps the tip of the proximate tongue circumferentially.
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公开(公告)号：US11788435B2
公开(公告)日：2023-10-17
申请号：US17776134
申请日：2020-11-11
申请人： Cummins Ltd
CPC分类号： F01D25/24 , F01D9/041 , F01D25/28 , F05D2220/40 , F05D2230/64 , F05D2240/11 , F05D2250/12 , F05D2250/231 , F05D2260/30
摘要： A pin member is proposed for a turbo-machine having a shroud arranged to rotate within a turbine housing. The pin member is configured to limit this rotation. It is a one-piece element comprising a cylindrical body and a limit surface for opposing motion of the shroud.
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公开(公告)号：US20230287806A1
公开(公告)日：2023-09-14
申请号：US18019006
申请日：2021-07-30
申请人： CUMMINS LTD
CPC分类号： F01D25/246 , F01D9/02 , F01D17/16 , F05D2220/40 , F05D2230/642
摘要： There is provided an assembly for a turbocharger, the assembly comprising a turbine housing and a nozzle ring, wherein one of the turbine housing and the nozzle ring comprises a tongue and the other of the turbine housing and the nozzle ring comprises a corresponding slot, the tongue and slot being configured to engage and prevent relative rotation of the turbine housing and the nozzle ring. Also provided is a method of manufacturing a turbine housing, assembly for use in a turbocharger, or a turbocharger.
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公开(公告)号：US11629605B2
公开(公告)日：2023-04-18
申请号：US17042618
申请日：2019-03-28
申请人： Cummins Ltd
发明人： Henry Carr , Paul Ghosh
摘要： A turbine wheel consists of a first shroud component and a second bladed disc component. The shroud component comprises a shroud structure, a hub structure and a spoke formed integrally therewith and extending between the shroud structure and the hub structure. The bladed disc component comprises a hub member having inner and outer rims, turbine blades disposed on the outer rim, and at least one receiving zone for receiving the spoke, said at least one receiving zone extending radially between the inner and outer rims. The shroud component and the bladed disc component are connected and thus provide the turbine wheel with a shrouded portion. A shrouded turbine wheel can therefore be conveniently assembled starting from at least two components. Further, these components have simplified geometries for easy manufacture, for example using a casting technique, while the overall mechanical performance of the turbine is preserved or improved.
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公开(公告)号：US11549600B2
公开(公告)日：2023-01-10
申请号：US17293170
申请日：2019-11-11
申请人： Cummins Ltd
发明人： Donald E. Willey , Matthew Brookes
摘要： A rotary turbine bypass valve comprises a valve chamber and a valve rotor. The chamber is positioned at a junction of an inlet port, an outlet port and a bypass port. The inlet port is configured to receive exhaust gas, the outlet port is configured to fluidly communicate with a turbine inlet, and the bypass port is configured to fluidly communicate with an exhaust aftertreatment device.
The rotor comprises a first and second recess, the first recess defining a primary flow passage, the second recess defining a secondary flow passage. The rotor is rotatable between a first position in which the rotor substantially blocks exhaust gas flow through the bypass port and a second position in which the rotor permits such. The secondary flow passage is configured to selectively permit fluid communication between the inlet port and the bypass port when the primary flow passage is partially blocked.-
公开(公告)号：US20220325634A1
公开(公告)日：2022-10-13
申请号：US17631369
申请日：2020-07-21
申请人： Cummins Ltd.
IPC分类号： F01D25/24
摘要： There is disclosed a bearing housing for a turbocharger. The bearing housing comprises a body and a mounting flange. The body is configured to receive one or more bearings. The one or more bearings are configured to support rotation of a shaft about an axis. The mounting flange extends around the body. The mounting flange comprises a plurality of bores, a first face and a plurality of cavities. The plurality of bores configured to receive a fastener therethrough. The first face is configured to engage a corresponding mounting flange of a turbine housing. The plurality of cavities are in communication with the plurality of bores. The plurality of cavities are axially recessed relative to the first face.
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公开(公告)号：US11441435B2
公开(公告)日：2022-09-13
申请号：US16349338
申请日：2017-11-13
申请人： Cummins Ltd
发明人： Simon David Moore , Matthew William Edwards , Stephen David Hughes , George E. Sanford , Nandakishore Arcot Madhusudan
摘要： A turbine for a turbo-machine is proposed in which, at a gas inlet, vanes, extending from a nozzle ring though slots in a shroud, are shaped on one side to as to substantially conform to the profile of the surface of the slot, whereby a close connection can be formed between the vane and the slot to inhibit leakage of gas between the vane and the slot surface.
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公开(公告)号：US11371369B2
公开(公告)日：2022-06-28
申请号：US17055485
申请日：2019-05-15
申请人： Cummins Ltd.
发明人： Matthew William Edwards , Karl Conlon , Simon David Moore , Christopher Parry , Andrew Sullivan , Paul Ghosh , Mark R. Holden , George E. Sandford , Nandakishore Arcot Madhusudan , Stephen David Hughes , Christopher J. Shaw
摘要： A turbine for a turbo-machine is proposed in which, at a gas inlet for a turbine wheel, vanes extend from a nozzle ring though slots in a shroud. The nozzle ring and shroud are relatively rotatable about a rotational axis of the turbine by at least 0.1 degrees. In use, the nozzle ring and shroud are relatively rotated to bring one side of the vane into close contact with one surface of the slot, to inhibit leakage of gas between the vane and the slot surface. For this purpose the respective surfaces of the nozzle and slot can be configured to closely conform to each other. If there is differential thermal expansion of the shroud and nozzle ring, the nozzle ring and shroud can relatively rotate, to withdraw the vane from the edge of the slot to relieve the pressure between them.
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公开(公告)号：US20220186661A1
公开(公告)日：2022-06-16
申请号：US17684175
申请日：2022-03-01
申请人： Cummins Ltd
发明人： Robin Daniels , Thomas Morton , Thomas Roberts , Christopher Parry , Richard Goodyear , Mark R. Holden , Donald E. Willey
摘要： A valve system comprising a valve chamber at a junction of an inlet port, an outlet port and a bypass port, the inlet port configured for fluid communication with exhaust gas, the outlet port configured for fluid communication with an inlet of a turbine, and the bypass port configured for fluid communication with an exhaust aftertreatment device; a rotary valve comprising a valve rotor which rotates about a valve axis within the valve chamber between a first position to permit gas flow through the bypass port and a second position to block gas flow. At least one of the valve rotor and the valve chamber comprises a protrusion and the other comprises a recess, wherein, in the first position, the protrusion and recess are spaced from one another, and, in the second position the recess receives the protrusion such that gas flow between the protrusion and recess is substantially prevented.
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公开(公告)号：US11242797B2
公开(公告)日：2022-02-08
申请号：US16963605
申请日：2019-01-24
申请人： Cummins Ltd
发明人： Scott Allen Herr , Mark Akins
摘要： A turbocharger assembly (1) comprises a turbine (4), a compressor (6), a housing (8), one or more electronic components (38, 40, 41, 42, 45, 47, 50, 51, 52, 54, 58) and a pettier device (46). The pettier device (46) is configured to provide electrical power to the one or more electronic components (38, 40, 41, 42, 45, 47, 50, 51, 52, 54, 58).
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